Establishing of CAD system for main bus-bar of HV switchgear cabinets and system integrating 高压开关柜主母线计算机辅助设计系统的建立及系统集成
Approach to Operation of Pressboard during Bus-bar Separated Running 探讨母线分列运行时压板的投退问题
Current leads are transition components between low-temperature magnets and room-temperature bus-bar. 电流引线是室温电源电缆与低温磁体之间的电连接部件。
Research on Closed End Fund Innovation Model Selection of Large Current Enclosed Bus-bar for Nuclear Power Unit 创新型封闭式基金相关条款价值研究核电机组大电流离相封闭母线的选型
The forced air-cooling enclosed bus-bar is the development trend of the enclosed bus-bar. 强迫风冷封闭母线是封闭母线发展的趋势。
Simulation of intermediate impedance type differential bus-bar protection for marine power system 舰船电力系统中阻抗母线差动保护仿真研究
Based on continuous extrusion method to produce copper bus-bar is a new processing method with the merits of saving energy and forming stabilization. 基于连续挤压法加工铜母线是一种成型稳定、节约能源的新型铜母线生产工艺,但大型铜母线连续挤压成形规律尚需深入研究。
Analysis on Bus-bar Automatic Transfer Switch Logic of Inner-bridge Connection with One Transformer interface level converter 完整内桥接线单主变变电所备自投逻辑剖析逻辑接口电平变换器
Introduction was made to the bus-bar of medium-voltage switchgear for in addition to meet rated voltage, working current, the standard requirements of temperature rise and voltage down losses etc. 介绍了中压开关设备的母线除应满足额定电压、工作电流、温升、电压降损失等标准要求外,还应满足电流分布均匀、机械强度高、散热良好等条件。
Bus-bar's design, manufacture, test, mounting and maintenance are carried out by us, which belongs to the "turn-key" project. 母线从设计、制造、试验、安装、维护等全过程均由我公司实施,属“交钥匙”工程。
Model Selection of Large Current Enclosed Bus-bar for Nuclear Power Unit 核电机组大电流离相封闭母线的选型
The bus-bar is an important component of power transmission system, and its security and reliability have great influence on the security and stability of all power system. 母线是电力传输的重要组成部分,母线保护的安全、可靠直接关系到电力系统的安全与稳定。
Numerical simulation on copper bus-bar under large extending ratio for continuous extrusion process 铜母线大扩展比连续挤压成形过程的数值模拟
Scheme studying of the protection device combined transmission line protection, bus-bar protection and circuit breaker failure protection on double busbar connection substation 双母接线系统中线路保护、母线保护、线路断路器失灵装置一体化方案的研究
To meet the high requirement of bus-bar protection, a hardware platform using high performance digital signal processor chip as CPU is developed. 针对母线保护的高要求构造了利用高性能数字信号处理器(DSP)芯片为CPU的微机式母线保护装置硬件平台。
Research and Development of a Hardware Platform of Microprocessor-Based Bus-Bar Protection Equipment 微机母线保护装置硬件平台的研究与开发
Bus-bar protection based on current travelling waves 基于电流行波的母线保护研究
Therefore, the Pb-Ca-Sn-Ag alloy was more suitable for negative bus-bar of VRLA battery. 在上述3种试验合金中,Pb-Ca-Sn-Ag的腐蚀速度较缓慢,因此,它较适合作阀控铅蓄电池的负极汇流排。
Formulae for calculating the magnetic field generated by current in a rectangular bus-bar are derived. 本文从理论上导出了计算矩形截面母线段磁场的公式。在工程实际上应用这些公式计算载流矩形母线段产生的磁场可获得相当准确的结果。
The mathematical model for the CAD of the electric main bus-bar is proposed. 实例计算表明:采用这种方法进行电气主接线的设计计算。
A New Bus-Bar Protection Based on Current Travelling Waves and Wavelet Transform ( 1)& Basic Principle and Criterion 基于小波变换的电流行波母线保护的研究(一)&原理与判据
From simulation results, the impedance variety is obtained. Theoretic and design bases are ( provided) for the composite plate instead of pure copper or pure aluminum bus-bar. 根据仿真得出:复合板阻抗值随电流频率的改变呈线性变化规律,该结论为实现用铜-铝-铜三层复合板取代纯铜及纯铝母线排提供了理论和设计依据。
Application of Bus-bar Technology on Site to Railway Low Tension Switching System 现场总线技术在铁路低压配电系统的应用
When the variation of bus-bar voltage and frequency occurs, the reliability of electric motors, transformers, control and protection system is analyzed in this thesis. 当电网电压和频率的变化时,分析了电动机、变压器、控制及保护系统、照明系统、通信导航设备等受电器工作的可靠性。
So the natural cooling mode for the enclosed bus-bar is recommended for the project. 因此,建议该工程封闭母线采用自然冷却方式。
Protecting universal model can well realize line protection, bus-bar protection, circuit breaker protection, transformer protection, generator protection and other electric equipment protection simulation. 保护通用模型能很好的实现线路保护、母线保护、断路器保护、变压器保护、发电机保护以及其它电力设备保护的仿真。
Current differential protection is widely used in the line protection and bus-bar protection for its simple principle, high reliability and high speed. And now it is one of the most important protective relaying to ensuring the safety and stabilization of power system. 电流差动保护因原理简单、可靠性高、动作速度快而广泛应用于变压器、线路和母线等元件主保护,是保障电网安全、稳定运行的最重要保护之一。
Bus-bar is an very important part in Power System, when an fault happens on the bus-bar, all the components connected to the bus will have power failures. 母线是电力系统中的重要组成部分,当母线上发生故障时,使得连接在母线上的所有元件由于母线的故障而停电。
The periodic current subtransient attenuation of generator is taken into consideration, when calculating the short-circuit of generators, and the decay time constant is corrected in view of the line impedance when the short-circuit point is away from the bus-bar. 2. 在计算发电机短路电流时,考虑周期分量的超瞬态衰减,考虑短路发生在远离汇流排位置时线路阻抗对短路电流的影响,并对周期分量衰减时间常数进行修正。